Q. Which of the following statements concerning business rules is true?

View solution

Q. Which one of the following symbols is not used in an ERD?

View solution

Q. Specialization is which of the following processes?

View solution

Q. A subtype discriminator is which of the following?

View solution

Q. A supertype/subtype hierarchy is which of the following?

View solution

Q. A supertype/subtype hierarchy has which of the following features?

View solution

Q. In a relational schema, each tuple is divided into fields called

View solution

Q. A _____ means that one record in a particular record type may be related to more than one record of another record type.

View solution

Q. A _____ means that one record in a particular record type is related to only one record of another record type.

View solution

Q. The way a particular application views the data from the data base that the application uses is a :

View solution

Q. A scheme describes

View solution

Q. A _____ means that one record in a particular record type can be related to many records in another record type and vice-versa.

View solution

Q. Which of the following situation requires the use of ID-dependent entities?

View solution

Q. A foreign key is:

View solution

Q. Which of the following columns is(are) are required in a table?

View solution

Q. In a 1:1 relationship, the foreign key is placed in:

View solution

Q. Which of the following column properties would be used to specify that cells in a column must be immediately filled with a monetary value of $10,000?

View solution

Q. The identifier of an entity will become the ________ of the new table.

View solution

Q. Which of the following data constraints would be used to specify that the value of a cell in one column must be less than the value of a cell in another column in the same row of the same table?

View solution

Q. A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n):

View solution